package com.stationbuilding.utils;

import android.graphics.Bitmap;
import android.util.Log;

import com.stationbuilding.MyApplication;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;

public class ZIPUtils {
	private static final int BUFF_SIZE = 1024 * 1024; // 1M Byte
	/**
	 * 批量压缩文件（夹）
	 *
	 * @param resFileList 要压缩的文件（夹）列表
	 * @param zipFile 生成的压缩文件
	 * @throws IOException 当压缩过程出错时抛出
	 */
	public static void zipFiles(Collection<File> resFileList, File zipFile) throws IOException {
		ZipOutputStream zipout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile), BUFF_SIZE));
		for (File resFile : resFileList) {
			zipFile(resFile, zipout, "");
		}
		zipout.close();
	}
	/**
	 * 批量压缩文件（夹）
	 *
	 * @param resFileList 要压缩的文件（夹）列表
	 * @param zipFile 生成的压缩文件
	 * @param comment 压缩文件的注释
	 * @throws IOException 当压缩过程出错时抛出
	 */
	public static void zipFiles(Collection<File> resFileList, File zipFile, String comment)
			throws IOException {
		ZipOutputStream zipout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile), BUFF_SIZE));
		for (File resFile : resFileList) {
			zipFile(resFile, zipout, "");
		}
		zipout.setComment(comment);
		zipout.close();
	}
	/**
	 * 解压缩一个文件
	 *
	 * @param zipFile 压缩文件
	 * @param folderPath 解压缩的目标目录
	 * @throws IOException 当解压缩过程出错时抛出
	 */
	public static void upZipFile(File zipFile, String folderPath) throws ZipException, IOException {
		File desDir = new File(folderPath);
		if (!desDir.exists()) {
			desDir.mkdirs();
		}
		ZipFile zf = new ZipFile(zipFile);
		for (Enumeration<?> entries = zf.entries(); entries.hasMoreElements();) {
			ZipEntry entry = ((ZipEntry)entries.nextElement());
			InputStream in = zf.getInputStream(entry);
			String str = folderPath + File.separator + entry.getName();
			str = new String(str.getBytes("8859_1"), "GB2312");
			File desFile = new File(str);
			if (!desFile.exists()) {
				File fileParentDir = desFile.getParentFile();
				if (!fileParentDir.exists()) {
					fileParentDir.mkdirs();
				}
				desFile.createNewFile();
			}
			OutputStream out = new FileOutputStream(desFile);
			byte buffer[] = new byte[BUFF_SIZE];
			int realLength;
			while ((realLength = in.read(buffer)) > 0) {
				out.write(buffer, 0, realLength);
			}
			in.close();
			out.close();
		}
	}
	/**
	 * 解压文件名包含传入文字的文件
	 *
	 * @param zipFile 压缩文件
	 * @param folderPath 目标文件夹
	 * @param nameContains 传入的文件匹配名
	 * @throws ZipException 压缩格式有误时抛出
	 * @throws IOException IO错误时抛出
	 */
	public static ArrayList<File> upZipSelectedFile(File zipFile, String folderPath,
													String nameContains) throws ZipException, IOException {
		ArrayList<File> fileList = new ArrayList<File>();

		File desDir = new File(folderPath);
		if (!desDir.exists()) {
			desDir.mkdir();
		}
		ZipFile zf = new ZipFile(zipFile);
		for (Enumeration<?> entries = zf.entries(); entries.hasMoreElements();) {
			ZipEntry entry = ((ZipEntry)entries.nextElement());
			if (entry.getName().contains(nameContains)) {
				InputStream in = zf.getInputStream(entry);
				String str = folderPath + File.separator + entry.getName();
				str = new String(str.getBytes("8859_1"), "GB2312");
				// str.getBytes("GB2312"),"8859_1" 输出
				// str.getBytes("8859_1"),"GB2312" 输入
				File desFile = new File(str);
				if (!desFile.exists()) {
					File fileParentDir = desFile.getParentFile();
					if (!fileParentDir.exists()) {
						fileParentDir.mkdirs();
					}
					desFile.createNewFile();
				}
				OutputStream out = new FileOutputStream(desFile);
				byte buffer[] = new byte[BUFF_SIZE];
				int realLength;
				while ((realLength = in.read(buffer)) > 0) {
					out.write(buffer, 0, realLength);
				}
				in.close();
				out.close();
				fileList.add(desFile);
			}
		}
		return fileList;
	}
	/**
	 * 获得压缩文件内文件列表
	 *
	 * @param zipFile 压缩文件
	 * @return 压缩文件内文件名称
	 * @throws ZipException 压缩文件格式有误时抛出
	 * @throws IOException 当解压缩过程出错时抛出
	 */
	public static ArrayList<String> getEntriesNames(File zipFile) throws ZipException, IOException {
		ArrayList<String> entryNames = new ArrayList<String>();
		Enumeration<?> entries = getEntriesEnumeration(zipFile);
		while (entries.hasMoreElements()) {
			ZipEntry entry = ((ZipEntry)entries.nextElement());
			entryNames.add(new String(getEntryName(entry).getBytes("GB2312"), "8859_1"));
		}
		return entryNames;
	}
	/**
	 * 获得压缩文件内压缩文件对象以取得其属性
	 *
	 * @param zipFile 压缩文件
	 * @return 返回一个压缩文件列表
	 * @throws ZipException 压缩文件格式有误时抛出
	 * @throws IOException IO操作有误时抛出
	 */
	public static Enumeration<?> getEntriesEnumeration(File zipFile) throws ZipException,
			IOException {
		ZipFile zf = new ZipFile(zipFile);
		return zf.entries();
	}
	/**
	 * 取得压缩文件对象的注释
	 *
	 * @param entry 压缩文件对象
	 * @return 压缩文件对象的注释
	 * @throws UnsupportedEncodingException
	 */
	public static String getEntryComment(ZipEntry entry) throws UnsupportedEncodingException {
		return new String(entry.getComment().getBytes("GB2312"), "8859_1");
	}
	/**
	 * 取得压缩文件对象的名称
	 *
	 * @param entry 压缩文件对象
	 * @return 压缩文件对象的名称
	 * @throws UnsupportedEncodingException
	 */
	public static String getEntryName(ZipEntry entry) throws UnsupportedEncodingException {
		return new String(entry.getName().getBytes("GB2312"), "8859_1");
	}
	/**
	 * 压缩文件
	 *
	 * @param resFile 需要压缩的文件（夹）
	 * @param zipout 压缩的目的文件
	 * @param rootpath 压缩的文件路径
	 * @throws FileNotFoundException 找不到文件时抛出
	 * @throws IOException 当压缩过程出错时抛出
	 */
	private static void zipFile(File resFile, ZipOutputStream zipout, String rootpath) throws FileNotFoundException, IOException {
		rootpath = rootpath + (rootpath.trim().length() == 0 ? "" : File.separator) + resFile.getName();
		rootpath = new String(rootpath.getBytes("8859_1"), "GB2312");
		if (resFile.isDirectory()) {
			File[] fileList = resFile.listFiles();
			for (File file : fileList) {
				zipFile(file, zipout, rootpath);
			}
		} else {
			byte buffer[] = new byte[BUFF_SIZE];
			BufferedInputStream in = new BufferedInputStream(new FileInputStream(resFile), BUFF_SIZE);
			zipout.putNextEntry(new ZipEntry(rootpath));
			int realLength;
			while ((realLength = in.read(buffer)) != -1) {
				zipout.write(buffer, 0, realLength);
			}
			in.close();
			zipout.flush();
			zipout.closeEntry();
		}
	}

	/**
	 * 压缩图片（质量压缩）
	 * @param bitmap
	 */
	public static File compressImage(Bitmap bitmap, String fileName) {
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		bitmap.compress(Bitmap.CompressFormat.JPEG, 30, baos);//质量压缩方法，这里100表示不压缩，把压缩后的数据存放到baos中
		File file = new File(MyApplication.getContext().getCacheDir().getAbsolutePath(), fileName + ".jpg");
		try {
			if (!file.exists()) {
				file.createNewFile();
			}
			FileOutputStream fos = new FileOutputStream(file);
			fos.write(baos.toByteArray());
			fos.flush();
			fos.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
		recycleBitmap(bitmap);
		return file;
	}
	public static void recycleBitmap(Bitmap... bitmaps) {
		if (bitmaps == null) {
			return;
		}
		for (Bitmap bm : bitmaps) {
			if (null != bm && !bm.isRecycled()) {
				bm.recycle();
			}
		}
	}
}
